#statcom

According to scientific research a big concern for mankind that the atmospheric change caused by the utilization or the consumption of fossil fuels provides us a great opportunity to make the renewable energy concept one of the interesting research areas. The higher authorities of all the countries or nations encourage the society through a proper way likewise seminars, conferences, printed media, etc to utilize the renewable energy resources in a predetermined manner. Global warming also is a big concern for our mankind, we need to step up as early as possible in order to utilize natural resources so that we can get more and more benefits, but care must be taken in order to preserve our atmosphere. It has been found that renewable energy has recorded the most significant development around the globe. According to the survey report, about 24 of the world’s electricity is produced by Renewable Energy resources, this implies that about ¼ th part of electricity is generated from REs’s whereas 76 of latest renewable installation goes in favor of photovoltaic PV and wind turbine WT systems. Efforts are being made towards research on hybrid renewable resources that are used for purpose of microgrids. Renewable based microgrids DC proposes a characteristic feature of utilizing natural resources with the help of energy management techniques. Stringent control is needed for hybrid type microgrids such as wind and PV based for harnessing maximum available energy, energy storage system like batteries demands efficient management and the DC bus voltage should remain constant. These above based requirements are fulfilled by the MPPT control algorithm in our project, so it provides intelligence to the system and makes the microgrids reliable. 

In today’s scenario, renewable energy based applications are increasing due to the global warming issue and increase in the prices of fossil fuels. Renewable energy sources RES like sun, biomass, air, water etc. are environmental friendly and have plenty of potential that can be utilized in power generation. However, RES have a problem of intermittent in nature that can be conquered presently by combining RES known as hybrid system that can provide the reliable, economic and environment friendly electricity. The increased penetration of grid connected renewable energy sources has an impact on the grid power quality in particular weak grids. Voltage fluctuation, frequency fluctuation and harmonics are major power quality issues. 

Grid codes require wind farm to remain on grid and inject specific reactive current when grid fault occurs. To satisfy the requirements, reactive power devices such as the static synchronous compensator STATCOM are usually used in modern wind farms. In order to produce reactive currents, the wind energy generation system WECS and the STATCOM are normally controlled with the phase locked loop PLL oriented vector control methods. The paper is about synchronization and reactive current support of PMSG. 

Energy is the basic needs for human comforts and day to day activities. Energy is the key factor for social and economic developments in today scenario. Now a day’s global warming is the main problem of developing counties, due to the nonstop combustion of fossil fuels all over the world, creating environmental hazards and reducing conventional energy sources. This scenario is contributing to the need to search for an new renewable source of energy, which is clean and available in excess. Due to the huge impetus in the government policies on the development of solar energy, it is acting as a main alternative renewable energy source. The solar energy is popular due to easy maintenance, cleanliness, sustainability, and zero noise characteristics. Therefore, Photo Voltaic module supplying loads with and without Maximum Power Point Technique MPPT is applied in the current studies to find the best results. Since the Photovoltaic array output is known to be affected by radiation of sun and temperature, which makes is compulsory to find out an effective method to draw out maximum power from Photo Voltaic cell modules. In my work, Perturb and Observe PandO algorithm is selected because of its easy implementation Solar energy is the clean and eternal source of energy till the end of the world. In this paper main focus is how to improve the efficiency of solar based power generation .Solar energy is variable depends upon the time and the atmospheric condition and hence output of the solar cell is directly proportional to the insulation level and inversely proportional to cell temperature and also the cell never operates at maximum power. 

The Static Synchronous Compensator STATCOM is a shunt controller, which is a member of FACTS devices. In this paper, an effective and robust controller for STATCOM device on transmission lines, a Single Machine Infinite Bus SMIB system is modeled. A state space mathematical model is constructed which considers both electromechanical oscillations and reactive current of the STATCOM at the installation site. Based the obtained third order model, state feedback linearization and linear quadratic regulation LQR approach are applied to obtain a nonlinear control law. The controllers are simulated and tested under different operating conditions comparing with the conventional PI controller.